Support for table talkers and method of making the same



April 2s,- 1925. 1,535,734

m.` M. Moss SUPPORT FOR TABLE TALKERS AND METHOD OF MKNG THE SAME Filed.Feb; 9, 1924 2 Sheets-Sheet l Y 1? y@ ,a Hwa/7 tkoznuj Api 28? i925.1,535,734

D. H. NJESS SUPORT FOR TABLE TLKERS AND METHOD OF MAKING THE! SAME FiledFeb; 9 1924 2 Sheets-Sheet 2 QH gaa mn@ *Dna wa( H, M055.

that the aforementioi'ied projecting tongues on the cap precluderelative rotation of the cap and base.

vReferring more particularly to the drawings,`theasseinbled table talkeris shown in 'Fig l comprising an acoustic horn 1, a

casing 2 for the electromagnetic sound reproducing mechanism, a cap 3 onthe cas-- ing in which is secured a ferrule t and the entire assemblysupported in a base 5. The conductors leading to the electromagneticoperating mechanism pass into the base 5 through cable 6. The supportingbase 5 comprises 4a plurality of 'parts including a top portion 7 and alower base port-ion 8. The base portion 8 and the top supporting base 7are assembled, as more clearly shown in Fig; 3, wherein a layer of teltor other cloth 9 is rigidly drawn over the bottoni and sides ofthe base9 by means of a disk insert 1() which is pressed into the interior otthe base portion 8. rilhe telt 9 on the exterior walls of the baseportion 10 serves to lrictionally bind the base portions 7 and 8 to-`getlier when the portion 8 is forced into the portion 7.

The base portion 7 is initially die pressed to the shape shown. Theremoval ot the material in the center of the base 7 leaves a pluralityot' tongues 14, 15, 16 and 17 protruding toward the center ot the baseportion 7 as illustrated more clearly in Fig. 5. The tongues are spacedapart by slots 18, l), 2O and 21. The tongues 14, 15, 16 and 17 arepressed downwardly and at the samel time an aperture 2-.1 maybebpunched,into base 7 to permit passageqotlie conductor 6 therethrough. Theaperture 24 for the conductors is drawn inwardly, providing round smoothedges to facilitate the pas sage of the conductors into the base. .By afinal operation on the base portion 7 a series of apertures 25 arepunched in an annular ring about the flattened top of the base 7. Theseapertures are clearly illustrated in plan view in Figs. 2,4, and 8.

The lower base member 8 is formed from flat sheet material by a pressingoperation which provides an annular upstanding shirt 26 connected with ahorizontal circular bottom plate depressed from the plane oi the bottoof the member( 8 as indicated at 27. The s irt 26 is then upset forminga shoulder 28 adjacent the planeet the. bottom of the base member 8,completing the stamping andl pressing operations upon this lower basemember.

The insert member represented by reierence character '10 is cut andpressed from sheetmetallto the shape represented. The several parts areassembled together as represented inthe drawings wherein y the circularfelt slieetf'f) is stretched overnthe lower base member by thetelescopiallyj fitting insert 10 Withiny the lower vbase'"member 8.

rlhe felt lays smoothly over the annular shoulder 28 which `forms alimiting stop wien the upper base member 7 is telescopically iitted intothe lower base member 8.

1t will be understood that after completion et' the cutting and pressingoperations upon the base members that the material is subjected to 'heattreatment for ornamenting and beautifying the exterior surfaceappearance.

As represented more clearly in Fig. 7, the electromagnetic soundreproducing mechai'iisnii within the casing is provided with ainolded'cap 3 having depending projections 29 and 3l. Still anotherprojection may be provided but is hidden from view in Fig. 7. Theseprojections are spaced at intervals about the periphery of the loweredge of the skirt of the cap 3 in proportion to the distances betweenthe apertures and the upper base .member 7. When thc instrument is to beassembled, these nojections 2t) and S31 enter corresponding),` apertures25 and lock the electro iagnctic mechanism against rotation with respectto the base. The cap 3 thickened at its central portion 38 andtl'ireaded to receirctlie ferrule si serving as a seat and support forthe acoustic horn 1. then the assembled table talker is insertedvertically downwardly into the supporting base and the projections 29and. 3l passed into apertures 25 locking thc instrument against rotationwith respect to the base, l clamp the casing 2 by frictionalengagen'ient with the depending lips 14, 15, 16 and 17 by ineans'o't acollar band 3ft shown more clearly in Fig. 6. The band 3st is providedwith a pair ot interiorly directed,projections S5 tending to bite intothe casing between a pair ot the diametrically opposed slots 18, .1.9,2O and il. The collar 34 is drawn tightly against depending lips 14,15,16 and 17 by means ot' screw nie). ber 36. After the table talker hasbeen firmly anchored against removal from the base member 7 the lowerbase member 8 is telescopically inserted within the upper base member 7as heretofore described. Ilihe cornvpleted instrument is substantiallysealedv against tampering and requires no adjusting after passing afinal and rigid factory inspection.

The metallic insert l() serves not only as a means :tor stretching thefelt 9 over the lower base member 8, but also as a weight to lower thecenter of gravity of thc'table talker. By this arrangement of telescopicmembers l avoid the necessity' of gluing the telt to the base and securea much more uniform product by reason of the tight stretching ot thefelt' over the shoulder 28 which adds to the esthetic qualities of theinstrunient.

The construction of the support as hereinbefore described and the methodof manufacturing the same. has been found to be one of the practicalembodiments of the invention, but it is to be understood thatmoditications may be made and that I intend no limitations u ontheinvention other than are imposed y the scope of the appended claims.

What I claim and desire to secure by Letters Patent of the United Statesis as follows:

'1. A Support for an electromagnetic sound reproducingmechanisnn'comprising in combination a casing including anelectromagnetic ope ating mechanism, a cap secured to said casing, aplurality of depending projections on said cap, and a hase provided witha plurality ot' apertures arranged to rereceive said projections whensaid casing is inserted in said-base for locking said asing gainstrelative rotation with respect to said ase. t

2. A Support for an electromagnetic sound' repro'ducer, comprising 1nconihination a hase member having a smaller diameter at its upperextremity than at its lower extremity, a easing containing an electromagnetic sound reproducing mechanism, and means in the upper extremity otsaid hase, memher for securing said casing against withdrawal andrelativev rotation, consisting of a plurality of depending tongues. andmeans forcing said tongues into l'rictional engagement with said easing.

3. A Support for an electromagnetic sound reproducing mechanism',comprising in com. hination an Aupper hase member and a lower haselnemher telescopically fitting together, a casing including anelectronmgnetie operating mechanism. means l'or securing 'said casing insaid upper hase member, comprising a pluralit)Y of do\\'nwardl vextending tongues, and means for forcing said tongues in a Substantiallyhorizontal direction for frietionally engaging the walls of said cas-ving consisting ot a hand adapted to have its ends drawn together t'orincreasing the grip ot' said tongues upon said casing.

l. A Support t'or an electroniagnetitl sound reproducer. comprising incomliination a plurality of hase memhers. including an upper hasememlier and a pair ot' lower hase memlieris` arranged to hetelescopicaltv secured together`- one of said lower base niemlierscomprising a disk with an upwardll protruding annular tiange thereonwith an upset annular ring on said lange immediately adjacent the planeot` said disle. said other hase inemlier comprising a disk of`relatively smaller diameter with an ilpwardly extending [lange forsecuring a layer ol' faluic over the first ot' said pair of hase membersand providing a mass l'or lowering the center,ot` gravit)v otq saidelectromagnetic sound reproducer.

vDVlI) ll. MUSS.

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